Wrench.



C P. CULBERTSON.

WRENCH.

APPLICATION FILED JAN. 8. 1915.

Patented Aug. 24, 1915.

2 SHEETSSHEET 1.

C. P. CULBERTSON. WRE NCH.

. 7 APPLICATION FILED ]AN.3, I915- l,151,08 Patented-Aug. 24, 1915. I

2 SHEETS-SHEET 2.

ammo z,

CHARLES 'P. GULBER'KSGN, F BAY GITY, TEXAS.

WRENCH.

menses.

Specification of Letters IPatent.

Patented Aug 241., 1915.,-

hgplication filed. January 8 1915. Serial Ho. 1,173.

To all whom it concern:

Be it known that 1, GHARLES Costnersou, a citizen of the United States, residing at Bay City, in the county of Matagorda and State of Texas, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to wrenches and more particularly to that class of wrenches termed 'atchet wrenches.

The primary object of the invention is to which are inaccessible to the ordinary wrench.

Another object of the invention is to pro vide a ratchet gear which can he quickly adjusted so as to render the wrench operable for either tightening or ioosening the nut and to provide novel means for holding the wrench in said adjusted position.

A further object is to provide an extensible socket carrying her so that the wrench may be lengthened when occasion arises, and

to provide a catch or dog for loci-ting the bar in any adjusted position. I

With these and other objects in view,

the invention consists in the novel fea 'tures of construction, combination and air-- rangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, and claimed.

In the drawings :--'-Figure 1 is a side eiea ver ical section; Fig. 3 is a transverse section on the line 3-3 of Fig. 2; Fig. 4: is an end elevation of one of the socket members; and Fig. 5 is a detail view of another form. of socket member.

Referring to the drawings by nurn'erais, 1 designates a standard which is circular 1n shape and provided with a. polygonal bore 2which extends approximately throughout the length thereof. At its upper end, this standard is provided with a knob or projection 3 which is adapted to be inserted Within a recess t formed upon a downwardly struck portion of a crank arm 5. a

breast rest 6 being secured to a second projection formed upon the crank arm 5 and alined with the extension i for a purpose "which is obvious. At its lower end the standard 1 is provided with a squared boss '2' and directiy alcove this boss is an enlarged rounded portion 8. The lower end of the cranknrrn 5 is eniarged end bifurcated as provide a wrench so constructed that the same may be eiticiently employed in places at 9 to form upper and lower arms, the arms of the said bifurcated portion having bores formed therein, the bore of the upper arm being slightly larger than the bore of the lower arm, which bores are adapted to be inserted over the portion 8 and the tower terminal end of the standard 1 respectively. a ratchet wheel if) having first been inserted between the arm of the bifurcated portion so as to permit the squared portion of the standard 1 to he moved into engagement with the corresponding squared bore of the ratchet Wheel upon insertion of the lower end of the standard within the bores of the bifurcated arm.

A pair of pawls 11 are adapted to he engaged with the teeth of the ratchet Wheei to impart turning movement to the standard 1 upon rotation of the crank arm.

the bifurcated Eortion, a coil spring 13 being connected etween the pawls in order to normally hold both of the same in engagement with the ratchet wheel 10. Pivotaily mounted to each of the pawls is a catch member 14 which extends through an eye 15 upon the outer face of the enlarged portion 9 and has a projection 16 formed upon the free end thereof for engagement with'a lug 1? formed upon the outer face of the portion 9 in order to lock either of the pewls out of engagement with the ratchet wheel 1t} and provide for turning the standard in either direction.

A. red 18, of a cross section corresponding to the cross section of the bore 2, is slidahly arranged in the said ore. has teeth 19 formed upon one edge thereof, and adapt: ed to he heldin any adjusted position within the bore by means of a dog 20 which is pivotally mounted upon the outer face of the standard and has a portion thereof extending through a slot in the standard and adapted to engage any one of the teeth 19, a spring 21 being disposed between the opposits arm of the dog and the standard in order to normally hold the dog in its en'- gaging position.

socket 22 is detachahiy secured to the. tower end of the rod 18 by means oi a set screw 23, the lower portion of the socket being provided with nut engaging recess for e gurpose which is obvious.

if desired, any numher of attachments niay be provided for the lower portion of the rod 18, one of said attachments being illustrated as at 24, in-Fig. 5.

From the foregoing description it will be [seen that the standard is free to turn within the crank when the pawls are out of engagement with the ratchet wheel, because of the pivotal connection between land 4 and one of the catches 14 withthelug 17 and turning the crank in a the ratchet'wheel 10,

, consequently be turned in the same direction the parts 3 circular faces upon by providin ifurcated lower end which the bores of the I of the crankarm are adapted to rotate. 'It

will be further seen that upon releasing any from its engagement d rection-for said released pawl to engage the standard 1 will andh will, because of the polygonal engagement'between the rod 18 and bore 2, cause said bar to be turned therewith and theref-Qoreturn an object with which the socket is engaged. i 1 From "the foregoing description taken. in

for such limitations Iim ort.

connection with the accompanying drawings it is thought that the construction and operation "of the device will be clearly understood and While I have herein shown and described one specific form of my i nvention I do not wish to be limited thereto, except as the claims may at is claimed is:

wrench comprising a standard hav ing a polygonal bore formed therein, a bar slidably arranged within said standard, said standard having a'squared portion formed 3 wheel tate said wheel.

2. A wrench comprising a standard, a'bar slidably arranged within said standard, a dog to lock said bar within'said standard, a ratchet wheel carried by said standard, pawls associated with-said ratchet, catches pivotally connected with said pawls to lock said pawls out of engagement with said" ratchet, and means to rotate said ratchet.

3. A wrench comprising a hollow standard, a bar slidably arranged within said standard, teeth formed on said for engagement with said teeth, a ratchet carried by said standard, pawls associated with said ratchet, catches pivotally connected with said pawls, means to rotate said ratchet, lugs carried by said means, said catches adapted to be engaged with saidof engagementv lugs to lock said pawls' out with said ratchet,

bar, a dog In testimony whereof I afli-x my signa- Y ture in presenceoftwo witnesses.

CHARLES P. OULBERTSON.

Witnesses:

I. N. BARBER, JA's. P. Mason. 

